Hagakure: The Book of the Samurai

Living and dying with bravery and honor is at the heart of
Hagakure, a series of texts written by an 18th-century samurai, Yamamoto Tsunetomo. It is a window into the samurai mind, illuminating the concept of bushido (the Way of the Warrior), which dictated how samurai were expected to behave, conduct themselves, live, and die.